AU689334B2 - A process for preparing an in situ polyethylene blend - Google Patents

A process for preparing an in situ polyethylene blend Download PDF

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Publication number
AU689334B2
AU689334B2 AU37995/95A AU3799595A AU689334B2 AU 689334 B2 AU689334 B2 AU 689334B2 AU 37995/95 A AU37995/95 A AU 37995/95A AU 3799595 A AU3799595 A AU 3799595A AU 689334 B2 AU689334 B2 AU 689334B2
Authority
AU
Australia
Prior art keywords
reactor
molecular weight
weight polymer
ratio
range
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
AU37995/95A
Other languages
English (en)
Other versions
AU3799595A (en
Inventor
Arakalgud Venkatapathia Ramamurthy
Burkhard Eric Wagner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Union Carbide Chemicals and Plastics Technology LLC
Original Assignee
Union Carbide Chemicals and Plastics Technology LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Union Carbide Chemicals and Plastics Technology LLC filed Critical Union Carbide Chemicals and Plastics Technology LLC
Publication of AU3799595A publication Critical patent/AU3799595A/en
Application granted granted Critical
Publication of AU689334B2 publication Critical patent/AU689334B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
    • C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2308/00—Chemical blending or stepwise polymerisation process with the same catalyst

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Polymerisation Methods In General (AREA)
AU37995/95A 1994-11-23 1995-11-22 A process for preparing an in situ polyethylene blend Ceased AU689334B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US343849 1994-11-23
US08/343,849 US5589539A (en) 1994-11-23 1994-11-23 Process for preparing an in situ polyethylene blend

Publications (2)

Publication Number Publication Date
AU3799595A AU3799595A (en) 1996-05-30
AU689334B2 true AU689334B2 (en) 1998-03-26

Family

ID=23347947

Family Applications (1)

Application Number Title Priority Date Filing Date
AU37995/95A Ceased AU689334B2 (en) 1994-11-23 1995-11-22 A process for preparing an in situ polyethylene blend

Country Status (10)

Country Link
US (1) US5589539A (fr)
EP (1) EP0713888B1 (fr)
JP (1) JPH08208738A (fr)
AT (1) ATE175980T1 (fr)
AU (1) AU689334B2 (fr)
BR (1) BR9505265A (fr)
CA (1) CA2163467C (fr)
DE (1) DE69507436T2 (fr)
ES (1) ES2128001T3 (fr)
GR (1) GR3029597T3 (fr)

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US20030199450A1 (en) * 2001-04-27 2003-10-23 Chiron Corporation Regulation of cytokine synthesis and release
US5795941A (en) * 1995-10-03 1998-08-18 The Dow Chemical Company Crosslinkable bimodal polyolefin compositions
EP0808854B1 (fr) * 1995-12-07 2001-10-10 Japan Polyolefins Co., Ltd. Resine de polyethylene, tuyau et joint pour tuyau fabriques avec cette resine
CA2243852C (fr) * 1996-01-22 2006-11-07 The Dow Chemical Company Melanges d'elastomeres polyoleofiniques presentant des proprietes ameliorees
US5736237A (en) * 1996-11-25 1998-04-07 Union Carbide Chemicals & Plastics Technology Corporation Geomembranes
CA2291106A1 (fr) * 1997-05-20 1998-11-26 Sandra Ann Kupperblatt Procede de preparation d'un melange de polyethylene in situ
US6319998B1 (en) * 1998-03-04 2001-11-20 Exxon Mobil Chemical Patents Inc. Method for making polymer blends by using series reactors
US6486270B1 (en) * 2000-08-25 2002-11-26 Equistar Chemicals, Lp High molecular weight, medium density polyethylene
MY136330A (en) * 2001-12-12 2008-09-30 Basell Poliolefine Spa Process for the polymerization of olefins
WO2006014475A1 (fr) 2004-07-07 2006-02-09 Dow Global Technologies Inc. Procede de production de compositions de polymere d'ethylene en plusieurs etapes
RU2377256C2 (ru) 2004-08-09 2009-12-27 Юнион Карбайд Кемикалз Энд Пластикс Текнолоджи Ллс Твердый высушенный распылением прокатализатор циглера-натта и способ полимеризации, в котором он используется
US20110166305A1 (en) * 2004-08-09 2011-07-07 Jorgensen Robert J Robust Spray-Dried Ziegler-Natta Procatalyst and Polymerization Process Employing Same
ES2309445T3 (es) 2004-12-17 2008-12-16 Borealis Technology Oy Proceso para la polimerizacion de olefinas en presencia de un catalizador de polimerizacion de las mismas.
AU2005316788B2 (en) 2004-12-17 2012-04-05 Dow Global Technologies Llc Rheology modified polyethylene compositions
US20070010626A1 (en) * 2005-07-11 2007-01-11 Shankernarayanan Manivakkam J Polyethylene compositions
EP1785435A1 (fr) * 2005-11-09 2007-05-16 Borealis Technology Oy Procédé pour étudier l'homogénéité du catalyseur
JP2007284660A (ja) * 2006-03-22 2007-11-01 Asahi Kasei Chemicals Corp ポリオレフィンの製造方法
US8080699B2 (en) * 2009-08-28 2011-12-20 Chemtura Corporation Two-stage process and system for forming high viscosity polyalphaolefins
EP2030994A1 (fr) * 2007-09-03 2009-03-04 INEOS Manufacturing Belgium NV Procédé de polymérisation de phase en suspension
US20100261859A1 (en) * 2007-12-20 2010-10-14 Basell Poliolefine Italia S.R.L. Catalyst components for the polymerization of olefins
WO2009083522A1 (fr) 2007-12-28 2009-07-09 Basell Poliolefine Italia S.R.L. Composants de catalyseur pour la polymérisation d'oléfines
MX2010007298A (es) * 2007-12-31 2010-09-30 Dow Global Technologies Inc Composiciones de polimeros basados en etileno, metodos para hacer las mismas y articulos preparados a partir de las mismas.
BRPI0911944B1 (pt) 2008-08-06 2019-08-13 Union Carbide Chem Plastic método para preparar um catalisador componente
KR20130089166A (ko) * 2010-07-06 2013-08-09 티코나 게엠베하 고 분자량 폴리에틸렌의 제조 방법
US9644049B2 (en) 2010-12-31 2017-05-09 Union Carbide Chemicals & Plastics Technology Llc Polymers, method of producing the same, and articles made therefrom
EP3241611B1 (fr) 2016-05-02 2020-03-04 Borealis AG Procédé d'alimentation d'un catalyseur de polymérisation
EP3483189A1 (fr) 2017-11-14 2019-05-15 Borealis AG Procédé automatisé permettant de mettre fin à une réaction de polymérisation d'oléfines dans des conditions d'urgence
CN111902467B (zh) 2018-02-05 2022-11-11 埃克森美孚化学专利公司 通过添加超高分子量高密度聚乙烯增强的lldpe的加工性
WO2022111966A1 (fr) 2020-11-27 2022-06-02 Borealis Ag Système d'alimentation de catalyseur

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5405901A (en) * 1994-07-06 1995-04-11 Union Carbide Chemicals & Plastics Technology Corporation Process of producing ethylene polymer blends in gas phase
US5494871A (en) * 1992-03-27 1996-02-27 Elf Atochem S.A. Process for preparing a prepolymerized olefin polymerization catalyst

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4302565A (en) 1978-03-31 1981-11-24 Union Carbide Corporation Impregnated polymerization catalyst, process for preparing, and use for ethylene copolymerization
US4293673A (en) 1978-12-28 1981-10-06 Union Carbide Corporation Spheroidal polymerization catalyst, process for preparing, and use for ethylene polymerization
US4684703A (en) 1979-02-27 1987-08-04 Union Carbide Corporation Polymerization catalyst for ethylene homopolymerization
US4482687A (en) 1979-10-26 1984-11-13 Union Carbide Corporation Preparation of low-density ethylene copolymers in fluid bed reactor
US4405495A (en) * 1980-06-30 1983-09-20 Union Carbide Corporation Catalyst impregnated on fine silica, process for preparing, and use for ethylene polymerization
US4354009A (en) 1981-07-30 1982-10-12 Union Carbide Corporation Catalyst composition for copolymerizing ethylene
US4814135A (en) 1987-12-22 1989-03-21 Union Carbide Corporation Process for extrusion
US4857600A (en) 1988-05-23 1989-08-15 Union Carbide Corporation Process for grafting diacid anhydrides
US5126398A (en) * 1988-11-16 1992-06-30 Union Carbide Chemicals & Plastics Technology Corporation Process for the in situ blending of polymers
US5149738A (en) * 1988-11-16 1992-09-22 Union Carbide Chemicals & Plastics Technology Corporation Process for the in situ blending of polymers
US5047468A (en) * 1988-11-16 1991-09-10 Union Carbide Chemicals And Plastics Technology Corporation Process for the in situ blending of polymers
US5076988A (en) 1990-03-09 1991-12-31 Union Carbide Chemicals And Plastics Technology Corporation Process for the extrusion of low density polyethylene
US5106926A (en) 1990-12-11 1992-04-21 Union Carbide Chemicals & Plastics Technology Corporation Preparation of ethylene/1-octene copolymers of very low density in a fluidized bed reactor
EP0503791B1 (fr) * 1991-03-06 1997-04-16 Mobil Oil Corporation Procédé de fabrication de polyéthylène bimodal dans des réacteurs en série
US5153382A (en) 1991-04-18 1992-10-06 Union Carbide Chemicals & Plastics Technology Corporation Extrusion of thermoplastic copolymers
IT1250731B (it) * 1991-07-31 1995-04-21 Himont Inc Procedimento per la preparazione di polietilene lineare a bassa densita'
JPH0565373A (ja) * 1991-09-06 1993-03-19 Nippon Petrochem Co Ltd ポリエチレン組成物
US5290745A (en) 1992-08-10 1994-03-01 Union Carbide Chemicals & Plastics Technology Corporation Process for producing ethylene polymers having reduced hexane extractable content
US5284613A (en) * 1992-09-04 1994-02-08 Mobil Oil Corporation Producing blown film and blends from bimodal high density high molecular weight film resin using magnesium oxide-supported Ziegler catalyst

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5494871A (en) * 1992-03-27 1996-02-27 Elf Atochem S.A. Process for preparing a prepolymerized olefin polymerization catalyst
US5405901A (en) * 1994-07-06 1995-04-11 Union Carbide Chemicals & Plastics Technology Corporation Process of producing ethylene polymer blends in gas phase

Also Published As

Publication number Publication date
US5589539A (en) 1996-12-31
EP0713888B1 (fr) 1999-01-20
ATE175980T1 (de) 1999-02-15
DE69507436D1 (de) 1999-03-04
EP0713888A2 (fr) 1996-05-29
AU3799595A (en) 1996-05-30
EP0713888A3 (fr) 1996-07-10
CA2163467A1 (fr) 1996-05-24
ES2128001T3 (es) 1999-05-01
JPH08208738A (ja) 1996-08-13
CA2163467C (fr) 1999-04-13
DE69507436T2 (de) 1999-06-24
BR9505265A (pt) 1997-09-16
GR3029597T3 (en) 1999-06-30

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Legal Events

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MK14 Patent ceased section 143(a) (annual fees not paid) or expired